fix: superset config uses POSTGRES_DB and REDIS_DB env vars for stage isolation

infra/helm/stonks-oracle/templates/superset.yaml

@@ -124,7 +124,7 @@ data:
         f"postgresql+psycopg2://{os.getenv('POSTGRES_USER', 'stonks')}:"
         f"{os.getenv('POSTGRES_PASSWORD', 'stonks_dev')}@"
         f"{os.getenv('POSTGRES_HOST', 'postgresql-rw.postgresql-service.svc.cluster.local')}:"
-        f"{os.getenv('POSTGRES_PORT', '5432')}/stonks"
+        f"{os.getenv('POSTGRES_PORT', '5432')}/{os.getenv('POSTGRES_DB', 'stonks')}"
     )
     FEATURE_FLAGS = {"ENABLE_TEMPLATE_PROCESSING": True}
     CACHE_CONFIG = {
@@ -133,7 +133,7 @@ data:
         "CACHE_KEY_PREFIX": "superset_",
         "CACHE_REDIS_HOST": os.getenv("REDIS_HOST", "redis-master.redis-service.svc.cluster.local"),
         "CACHE_REDIS_PORT": int(os.getenv("REDIS_PORT", "6379")),
-        "CACHE_REDIS_DB": 1,
+        "CACHE_REDIS_DB": int(os.getenv("REDIS_DB", "0")),
     }
     PUBLIC_ROLE_LIKE = None
     SESSION_COOKIE_HTTPONLY = True